PSI CRO, a full-service contract research organization, continues research on differing strains of bacteria in various countries. It is important to know which pathogens and patterns of antibacterial resistance can be found in any particular country when conducting multi-national clinical trials of new antibacterial medicines. Currently, there is a lack of this data for some countries, e.g. for Central and Eastern Europe (CEE). Therefore, at the initiative of the Head, Medical Affairs at PSI, Maxim Belotserkovsky, MD, PhD, and in collaboration with the Russian National Institute of Antibacterial Chemotherapy, a surveillance program aimed at studying typical pathogens and antibacterial resistance patterns in CEE countries was instituted 5 years ago.